Real-time monitoring instrument for the alkalinity of the solution in the reaction vessel
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I am currently conducting a reaction in a strongly alkaline environment, with the concentration of the base used being around 6%. During the reaction, this concentration may decrease, and when it drops to a certain level, it affects the reaction. I would like to install a device similar to a thermometer that can monitor the alkalinity of the solution in real time. I’m not sure if such a device exists – what is it called? It is used for large-scale industrial production, not for small-scale experimental use. (Alkalinity cannot be determined by acid-base titration either, as solids precipitate during the titration process, and the solution is very dark in color; these factors make the titration method inaccurate.) Another issue is whether there are any industrial devices that can display in real time the changes in the pH value of the solution inside the reaction vessel. Laboratory pH meters seem unsuitable for use in industrial production vessels, as their electrodes may easily get damaged.
There may be industrial devices that can display in real time the changes in the pH value of the solution inside the reactor; it is advisable to consult professionals in instrumentation for this purpose.
Online pH meters are available from Beijing Defei, E+H, ABB, and Yokogawa
An industrial pH meter will do. If it’s prone to breaking, provide proper support for protection. However, the pH electrode is a consumable item; under harsh working conditions, it needs to be replaced frequently. E+H offers such electrodes, and if you need them, I can send you some information for review first
When the alkali concentration exceeds 4%, the pH meter cannot measure it. What are the components of your material? If no materials other than the base contribute to conductivity, a conductivity-based acid-base concentration meter can be used to measure the base concentration; otherwise, it is not possible to do so. Additionally, PH monitoring in reaction vessels is very commonly used. You just need to specify the material composition, testing range, temperature, installation method, explosion-proof requirements, etc.